Thanks for another update, now the backtrace works so it gives a very verbose crash report, for the sake of not flooding this post I pastebin'd it:

Steam
http://pastebin.com/dQRYMwtd

And this is the crash report i get when i try to use/validate my precious IK multimedia plugins with logic:

http://pastebin.com/7dBdF2hb

Again thanks for the update